1、Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. 2、This product is a electric heater with automatic constant temperature and energy saving. 3、This PTC ceramic air heater has the characteristic of high security. 4、Heating solid and gas, heating life of more than 3 years. 5、Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. Features: Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. This product is a electric heater with automatic constant temperature and energy saving. This PTC ceramic air heater has the characteristic of high security.  Heating solid and gas, heating life of more than 3 years. Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. Specification: Material: Aluminum Weight: 396g/14oz Heating material: PTC thermistor  Heating mode: heat through the flow of air Lead material: high temperature resistant wire Heating life: more than 3 years Rated Power: 1500W Voltage: 220V (the bare line is connected, regardless of the positive and negative pole, the rated voltage can be)  Size: 230*76*26mm/ 9.1*3*1inch (corrugation length 186mm)  Package List: 1 x PTC Ceramic Air Heater Note: With 150 degrees normally closed temperature control protector, the heater can not be dry burning.